Shade-roller.



No. 870,099. PATBNTED Nov. 45, 1907.

E. P. HARTSHORN.

SHADE ROLLER. APPLIcA'rIoN FILED 000.10. 1906.

Inventor hm( MM A ttomeys.

UNITEDy sTATEs PATENT oEEioE.

EDMUND F. HARTSHORN, OF NEWARK, NEW JERSEY, ASSIGNOR TO STEWARTHARTSHORN COMPANY, OF EAST NEWARK, NEW JERSEY, A CORPORATION OF NEWJERSEY.

SHADE-ROLLER.

Specieation of Letters Patent.

Patented Nov. 5, 1907'.

Application filed December 10l 19,06. Serial No. 347.094.

To all whom Vit may concern:

Be it known that I, EDMUND F. HAR'rsHoRN, a citizen of the United Statesof America, residing in Newark, county of Essex, State of New Jersey,have invented a Shade-Roller, of which the following is a specification.I

The object which I have in view is the production of a shade rollerwhich will have advantages in simplicity, cheapness and durability.

Other objects will more fully appear from the following specification:

ln the accompanying drawings, Figure l represents a longitudinal sectionof a portionv of a i'oller embodying my invention, Fig. 2 is a frontView thereof, with the spear removed, Fig. 3 is a sectional view thereofon the line a*a of Fig. 2, Fig. 4 is a sectional view on the line b-b ofFig. 1, Fig. 5 is a perspective view of the cap-plate or dog casing,Fig. 6 is an elevation of the spear, Fig. 7 is an elevation of one ofthe dogs, Fig. 8 is a sectional view thereof on the line o-c of Fig. 7,Fig. 9 is a perspective view of a modified form of dog, and Fig. 10 is afront view of the cap showing a modication.

In all of the views, like parts are indicated by the same referencecharacters.

In the drawing, the roller 1 is hollow and has within it the rod uponwhich is the spring, in the usual manner. Upon the end of the rod 2 is aspear 3. This spear is shown as having a bifurcated end (see Fig. 6)forming a means of attachment for the rod 2, but such conformation ofthe spear is solely for purposes of illustration, and it is to beunderstood that any other form of spear may be employed. The outerextremity of the spear is flattened in the usual manner for engagementwith the notch on the bracket so as to keep the spear and rod 2 fromturning and to permit the roller 1 to rotate. The spear is provided withnotches 4 4. These notches are two in number and are diametricallyopposed to each other, as appears in Fig. 4. The bases of the notchesare flat, but the walls are preferably slightly inclined as shown forfacility in casting. The details of the roller, ,spring rod and spearmay be modified, as desired, as they form no part'of the presentinvention. The spear passes through a hole in the cap 5, within which issecured a bearing. This cap 5 is circular in outline and is securedagainst the end of the roller 1 by any means, as for instance by meansof a sheet metal ferrule 6 which is attached to the roller in any mannersuch as by rolling the free end into the wood of the roller, as shown inFig. 1. The cap is provided with an interrupted flange 7 against whichthe feirule engages, and with sharpened projections 8 which are embeddedin the end of the roller to prevent turning of the cap. The cap servesas a means of closing the end of the roller and also as a bearing forthe spear.

lt also supports the dogs 9. These dogs freely move vcasing 10 arediametrically arranged on the opposite sides of the center opening 13 inthe casing. The outside ends of the channels are closed in by flaps orprojections which may be made on the casing by the same stampingoperation which defines the casings shape. These projections or flaps 14are sufliciently long so that they may be bent around the back of thecap in order to hold the dog casing in position upon the cap. When thecasing is in position and rests upon the cap, the channels12 will beopen at the inside and closed at the outside by the projections 14. Thebottoms of the channels will be made by the cap. The channels 12 areeach preferably provided with a longitudinal opening or window 15 whichextends throughout the greater portion of the length of the channel. Thecenter opening 13 of the casing is preferably of the same size as thecenter opening of the cap.

The dogs, shown in detail in Figs. 4, 7 and 8, are two in number and arealike. They are preferably made of a stamping and have an inclined edge17, as shown, by means of which a cam action with the notches 4 in thespear is secured. Each dog has preferably a projection 18 at one sidewhich projection is of such a size as to freely Iriove within thelongitudinal window 15. The size of the dog is such that it will freelymove Within the channel 12 so as to be capable of engaging within anotch 4 in the spear. The projections 18 are sufliciently large toprevent the removal of the dogs from the channels When the parts are inpositionand made up and are sufficiently small to permit the dogs tomove through a suflicient distance to engage the notches 4 and properlyprevent the roller from rotating. These projections 18 may be made inany manner but are preferably struck up while the dog is being stampedto shape. This will produce a depression behind the projection which isunobjectionable.

The dog casing is made preferably in a single stamping operation, themetal being bent in the direction shown by the arrow, Fig. 3. Thewindows or openings 15 are preferably made in the same operation inwhich the channels 12 are formed. As shown in Fig. 3, the bur which willbe formed around the edges of the window 15 will extend outward. This isimportant, for if the windows were stamped inwards, the bur wouldproject inward and interfere with the free movement of the dog.

The parts are assembled by inclosing the dogs within the channels 12 sothat the projections 18 extend out through the windows 15. .The dogcasiug'is then secured to the cap. The engagement of the flanges i withthe edges ot the dog casing, and the engagement of the projections 14with the back of the cap will firmly secure all of the parts together.The device thus constructed constitutes an article oi manufacture whichcan be shipped in that i'orm without danger of the dogs becoming lost orderanged in any manner.

The projections 18, in addition to the lunction oi limiting the movementoi the dogs, are also important in insuring that the dogs are put in inthe right manner. Ii one or both of the dogs should be turned over, theprojections 18 would engage with the cap and would prevent the properattachment oi the dog casing to the cap. The dog casing can be properlysecured to the cap only when the dogs are in place with the projections18 extending through the windows 15. This makes it possible to assemblethe device and put the dogs in position by machinery, which is a greatadvantage over the pivot dogs or pawls heretofore used, in which it isnecessary to adjust in position by hand. Ii the roller be slowly turned,the uppermost dog will slide down into the uppermost notch 4 in thespear. The inclined ends 17 of the dogs are so arranged in relation tothe rotation oi the spear that as the shade is nnrolled, these inclinededges will engage with the notches 4. Il the shade be allowed to wind upslowly, owing to the action of the spring, the up-` permost dog willdrop into the uppermost notch oi the -spear and the roller will beprevented from further rotation. 1f the shade be allowed to wind uprapidly, however, the dogs may be held away from engagement with thespear by centrifugal action,-an operation in which the dogs willengageor disengage with the notches 4 in the spear in exactly the same manneras the ordinary pivot pawls would engage.

The invention may be modified in many ways, in one modification, theprojection 18 on the dog may be omitted, in which case the windows 15would be omitted. Such a dog, without aprojection, is shown in Fig. 9.rThis results in a somewhat cheaper construction than that beforedescribed. The dogs and channels need not be arranged as alreadydescribed, as the channels may be inclined as shown in Fig. l0.

'In accordance with the provisions of the patent statutes, 1 havedescribed the principle oi my invention, together with the apparatuswhich I now consider to represent .the best embodiment thereof, but 1desire to have it understood that the apparatus shown is merelyillustrative, and that the invention can be carried out in other ways.

Having now particularly described and ascertained the nature of myinvention, and in what manner the same is to he periormed, what I claimand desire to secure by Letters Patent isz-- lA A cap for a shade rollerhaving a dog casingl attached thereto and an opening for the spear' dogswithin the casing each of the said dogs being' smaller than the spearopening and means for retaining the dogs within the casing such meansbeing independent et the spear.

2. A cap for a shade roller having a dogl casing, with channels for thedogs, windows in the channels, and dogs within the channels, the saiddogs having projections which extend through the windows.

Il. A cap for a shade roller having a dog casing thereon, the said doglcasing having` integral channels for the dog. windows within thechannels, the said windows beingl stamped from inward outward so thatthe bur made by stainliing will project outward.

-l. A dogcasing for shade roller caps, the said casingl beingl made ofsheet metal and having stamped channels for the dogs, the said channelshaving windows, the said windows being stamped from inward outward sothat the bnr will extend outward from the channel.

A sliding dog tor a shade-roller made of a stamping. with an integrallateral projejction stamped out from the dog.

G. A cap for a shade roller havingl a dog casing thereon, the said dogcasingl being niade ot' a stamping, with integral channels andprojections inclosing the ends of the channels and lient back of the capfor securing the` casingl and cap.

7. A shade roller having a spear with notches thereiny a ferrnle, a cap,a dog casing on the cap, the said dog cas ing having channels the saidchannels being inclosed by means independent et' the errule and slidingdogs Within the dog casing engaging with the notches in the spear andmeans in addition to the spear for keeping the dogs within the channels.

S. A shade roller having a spear with notches therein and a cap, thesaid cap having a sheet metal dog casing thereon, the said casing havingstamped channels with windows, sliding dogs within the channels, thesaid dogs having projections which pass through the windows, the saiddogs engaging with the notches in the spear.

This specification signed and witnessed this fourth day of December,1906.

EDMUND F. HAR'IS HORN.

Witnesses z E. L. DUnGiN, GEO. E. GUN'iHnn.

